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Equation for calories burned

According to the American Heart Association, the number of calories a 100 pound person burns when bicycling 12 miles per hour is 270 calories per hour. A 150 pound person burns 410 calories per hour when bicycling 12 miles per hour.

1. Write a linear equation which shows the relationship between weight and calories burned per hour.

2. Use the linear equation to prepare an x-y table.

3. If a person weighs 175 pounds, how many calories per hour would they burn?

4. If a person weighs 90 pounds, how many calories per hour would they burn?